bruckner



(No Model) 2 Sheets-Sheet 1.

. A. BRUGKNER.

HOLLOW PLATE WALL.

No. 575,209. Patented Jam- 12, 1897.

- HM MH H r n -/7MW W (No Model.)

IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII/fl 2 Sheets-Sheet '2.

A. BRUOKNER.

HOLLOW PLATE WALL.

Patented Jan. 12, 1897.

IRIIII/II/J Ill/I/IIII I mlliili A UNITED STATES PATENT OFFICE.

ALFRED BRUOKNER, OF AIX-LA-OHAPELLE, GERMANY.

HOLLOW-PLATE WALL.

SPECIFICATION forming part of Letters Patent No. 575,209, dated January12, 1897'.

. Application filed Junel5, 1896. Serial No. 595,685. (No model.)Patented in Germany December 31, 1893, No. 78,867; in England July 4,1894, No. 18,583; in Austria December 1, 1894,110. 44/6,] 85, and inSwitzerland s t b 4,1895,

T0 at whom, it may concern]:

Be it known that I, ALFRED BRUCKNER, a subject of the King of Prussia,German Emperor, and a resident of Aix-la-Ohapelle, in the German Empire,have invented certain new and useful Improvements in Hollow- PlateWalls, (for which I have obtained patents in Germany, No. 78,867, datedDecember 31, 1893; in England, No. 18,583, dated July 4, 1894; inSwitzerland, No. 10,832, dated September 4, 1895, and in Austria, No.44/6,185, dated December 1, 1894,) of which the following is a full,clear, and exact description.

The present invention relates to the construction of walls of hollowplates or slabs of plaster-of-paris, cement, or like material and to theconstruction of the said slabs; and it consists in the detailshereinafter set forth, and pointed out more particularly in the claims;and in order to render the present specification more easilyintelligible reference is had to the accompanying drawings, in whichsimilar letters of reference denote similar parts throughout the severalviews.

Figure 1 is a part front elevation of a wall constructed according tothe present invention; Fig. 2, a vertical longitudinal section through aslab or brick of which the wall is built; Fig. 3, a verticalcross-section through the wall shown at Fig. 1; Fig. 4, an end elevationof Fig. 2; Fig. 5, a section on line 'Lb u of Fig. 2; Fig. 6, a partelevation of a wall, showin g the manner in which the same is stayed byrods or tubes extending therethrough; Fig. 7, a side elevation of thewall of Fig. 6, some of the slabs or plates being removed; Fig. 8, ahorizontal section through the wall of Fig. 6 5 and Fig. 9, a detail ofthe sleeve for tightening up the rods or tubes, as hereinafterdescribed.

Referring to Figs. 2, 4, and 5, the slabs or plates are formed withsuitable grooves and ledges along their sides to enable them to fit ordovetail one into the other in the well-known manner. These plates areprovided with a series of perforations iand 7c, of which the formerextend longitudinally, 2'. e., in the plane of the plate, through thesame from top to bottom, either vertically, as shown at Figs. 1 and 3,or at an incline, as shown at Figs. 2 to 5.

The latter perforations extend from the bot tom edge of the plateinwardly in the same direction as the channels 2', but do not penetratethe plate, being stopped shortly before they reach the top edge, asshown at It. In practice a series of these plates are built up, asindicated at Fig. 3, so that the throughgoing holes t' of the one platecorrespond or cover with those of the next to produce a channelextending through the whole wall from the top to the bottom or at anincline. These channels are filled with some binding mass or fluid,which hardens and binds all the plates together, thus forming a verystrong and durable wall.

In cases where additional strength is required some of the through-goingchannels may be provided with metal stays, as shown at Figs. 6 to 9,such stays consisting either of tubes or of rods, as may be desired oradvisable. Although these tubes or rods may be fixed in any suitablemanner, I prefer to employ tubes 72, as shown at Fig. 6, and to attachthem to the floor and ceiling c and c by means of screwed plugs f, Fig.7, carrying internally-threaded sleeves on, into which the lengths oftube are screwed, said lengths being attached one to the other by meansofinternallyscrewed sleeves m. One of these sleeves, as at M, may beprovided with right and left hand internal threads, the tube or rod endsbeing threaded accordingly, and the said sleeve, Fig. 9, may beperforated transversely to receive a key or lever Z, by means of whichthe said rod or tube It may be tightened between the fioor c and theceiling 0 Outside the rod or tube h some suitable binding material maybe poured into the channels of the plates, whereby the rod or tube willbe firmly bound to the plates and the latter will be cemented togetherby the material pour-ed in passing between the crevices of the plates.This material will not, however, fill up the perforations or channelsit, but merely seal the ends of the same, thereby forming a sealedair-chamber, which chambers will effectually prevent the transmission ofnoise, at least to a certain extent, and also act to prevent the dampand moisture from penetrating the wall.

Walls formed as above described with stays are of great strength anddurability.

Obviously the channels containing the rods or tubes may be arranged atan incline, as shown at Fig. 2, in which case the stays would beslanting instead of perpendicular.

In building up the wall the metal rods may be easily arranged in theirrespective orifices, as the same are made in sections, and the lastsection may be passed downward from the ceiling and screwed'into thesleeve of the section below it after the plates have been placed inposition, or, in case an upper plug is employed, as shown, the sectionsmay first be screwed entirely down in their respective sleeves and thenthe whole rod lengthened by turning the sleeves in the manner previouslydescribed, whereby the upper end of the rod may be made to engage theplug fast in the ceiling.

I claim my invention 1. A wall composed of hollow plates or slabs eachhaving a series of through-going channels and a seriesof channelspartially extending through, as specified, said through-going channelsof the one slab corresponding with those of the adjacent slab, metalstays extending through said through going channels, means for attachingsame to the floor and ceiling, and a binding material arranged in saidchannels around said stays substantially as described.

2. A wall composed of hollow plates or slabs each having a series ofthrough-going channels and a series of channels extending partiallythrough them as specified, said throughgoing channels of the one slabcorresponding with those of the adjacent slabs, metal stays extendingthrough said channels, said stays being in sections, a sleeve to connectsaid sections having internal threads in opposite directions and meansfor turning said sleeve and a binding material around said stay withinsaid channels substantially as described and shown and for the purposespecified.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

ALFRED BRUOKNER. Witnesses:

JOHN HECKMANNS, WILHELM WH-i'JTTH-UT.

